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A tug boat sprays water on a cargo ship to celebrate the upcoming 100th anniversary of the start of operations in the Panama Canal as it travels towards the Culebra cut in Gamboa near Panama City

A tug boat sprays water on a cargo ship to celebrate the upcoming 100th anniversary of the start of operations in the Panama Canal, which will be marked in 2014, as it travels towards the Culebra cut in Gamboa near Panama City December 11, 2013.